Spindle for rolled wrap

ABSTRACT

A spindle for rotatably holding a rolled wrap includes a hollow tubular body having a threaded rod axially movably received therein. A front section of the tubular body is axially cut to form two symmetrical halves, on inner wall surfaces of which two push blocks are correspondingly provided to define two forward tapered recesses. The threaded rod may be screwed inward to move a tapered front end through the two forward tapered recesses of the push blocks and thereby flares the two halves of the front section of the tubular body for the same to tightly contact with and hold the rolled wrap in place, allowing a user to tensely stretch an outward pulled length of the rolled wrap to smoothly and firmly package an article.

FIELD OF THE INVENTION

The present invention relates to a spindle for rolled wrap, and more particularly to a spindle that can be controlled for a rolled wrap rotatably mounted thereon to be held in place.

BACKGROUND OF THE INVENTION

When a rolled wrap is used to packaging an article, particularly a large-size article, a user usually has to pull out a length of the rolled wrap to wrap the article and then cut the wrap. To facilitate easy pull of the rolled wrap, the rolled wrap is usually mounted on a tubular member to rotate freely and be pulled outward. However, the outward pulled wrap must be tensely stretched to smoothly and firmly package the article. Since the conventional tubular member for rotatably holding the rolled wrap thereon does not include any means for holding the rolled wrap in place, it is uneasy for a user to tensely stretch the outward pulled portion of the rolled wrap to tightly wrap the article. The outward pulled wrap tends to become loose, wrinkled, and biased, and fails to give the packaged article a nice appearance.

SUMMARY OF THE INVENTION

A primary object of the present invention is to provide a spindle for rolled wrap that can be controlled to stop a rolled wrap rotatably mounted thereon from rotating. To achieve the above and other objects, the spindle for rolled wrap according to the present invention mainly includes a hollow tubular body having a threaded rod axially movably received therein. A front section of the tubular body is axially symmetrically cut to form an upper and a lower half, on inner wall surfaces of which two push blocks are correspondingly provided to define two forward tapered recesses. The threaded rod may be screwed inward to move a tapered front end thereof through the forward tapered recesses of the two push blocks and thereby flares the upper and the lower half of the front section of the tubular body for the same to tightly contact with and thereby hold the rolled wrap in place, allowing a user to tensely stretch an outward pulled length of the rolled wrap to smoothly and firmly package an article.

The upper and the lower half of the front section of the tubular body are provided at front ends with radially raised hooking ribs to prevent the rolled wrap from moving out of a front end of the spindle.

BRIEF DESCRIPTION OF THE DRAWINGS

The structure and the technical means adopted by the present invention to achieve the above and other objects can be best understood by referring to the following detailed description of the preferred embodiments and the accompanying drawings, wherein

FIG. 1 is an assembled perspective view of a spindle for rolled wrap according to an embodiment of the present invention;

FIG. 2 is an exploded perspective view of the spindle for rolled wrap shown in FIG. 1;

FIG. 3 is a sectional view of the spindle for rolled wrap shown in FIG. 1;

FIG. 4 shows an example of using the present invention to rotatably hold a rolled wrap;

FIG. 5 shows the spindle of the present invention is flared at a front end thereof to firmly hold the rolled wrap in place; and

FIG. 6 is a sectional view showing the manner in which the spindle of the present invention is flared at the front end thereof to firmly hold the rolled wrap in place.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Please refer to FIGS. 1 and 2 that are assembled and exploded perspective views, respectively, of a spindle for rolled wrap 100 according to an embodiment of the present invention, and to FIG. 3 that is a sectional view of the present invention. For the purpose of concision, the spindle for rolled wrap 100 is also briefly referred to as the spindle 100 throughout the specification. As shown, the spindle 100 mainly includes a hollow tubular body 1 and a threaded rod 2 axially movably received in the hollow tubular body 1.

A front section of the hollow tubular body 1 is axially symmetrically cut at two diametrically opposite sides to form an upper and a lower half 11, 12. Free ends of the upper and the lower half 11, 12 are provided with radially raised hooking ribs 111, 121. An upper and a lower push blocks 13, 14 are provided at a predetermined position on an inner wall surface of the upper and the lower half 11, 12, respectively. Both of the upper and the lower push block 13, 14 define an axially extended open-side recess 131, 141, which are axially tapered toward a front end of the tubular body 1. A rear section of the hollow tubular body 1 serves as a handle 15 for gripping by a user. A length of threaded portion 16 is provided on an inner wall surface of the hollow handle 15 at a predetermined position to mesh with the threaded rod 2.

The threaded rod 2 has a tapered front end and is provided at a rear end with a diametrically expanded round grip 21.

When the threaded rod 2 is received in the hollow tubular body 1 without being screwed to pass through the upper and the lower push block 13, 14, as shown in FIG. 3, a rolled wrap (not shown in FIG. 3) may be rotatably mounted around the upper and the lower half 11, 12 of the hollow tubular body 1, and a user may hold the spindle 100 at the handle 15 to pull out a length of the rolled wrap to wrap or package an article. And, when it is desired, the user may turn the grip 21 to screw the threaded rod 2 forward for the tapered front end of the threaded rod 2 to move into the forward tapered recesses 131, 141 to push against the two blocks 13, 14 and thereby flares the upper and the lower half 11, 12. The flared upper and lower halves 11, 12 in turn push against a radially inner side of the rolled wrap to stop the latter from rotating about the spindle 100, so that the user may conveniently tensely stretch the outward pulled wrap to smoothly and firmly package the article.

Please refer to FIG. 4. To use the spindle 100 to control the rotation of a rolled wrap 3, first mount the rolled wrap 3 on the front section of the hollow tubular body 1. The hooking ribs 111, 121 at the free ends of the upper and the lower half 11, 12 of the hollow tubular body 1 prevent the rolled wrap 3 from moving out of a front end of the spindle 100. Before the threaded rod 2 is turned at the grip 21 to push the tapered front end of the threaded rod 2 against the upper and lower push blocks 13, 14, the upper and the lower half 11, 12 of the hollow tubular body 1 are in loose contact with the radial inner side of the rolled wrap 3, and the rolled wrap 3 is freely rotatable about the spindle 100. At this point, the user may hold the spindle 100 at the handle 15 to pull out a length of the rolled wrap 3 for packaging an article.

In the course of or at the completion of packaging, the user may turn the grip 21 depending on actual need to screw the threaded rod 2 into the tubular body 1 by a desired distance, as shown in FIGS. 5 and 6, so that the tapered front end of the threaded rod 2 passes through the forward tapered recesses 131, 141 of the upper and the lower push blocks 13, 14 to flare the upper and the lower half 11, 12, causing the same to tightly press against the radial inner side of the rolled wrap 3 and thereby holds the latter in place. With the threaded rod 2 screwed into the tubular body 1 by different distances, the rolled wrap 3 may be held to the front section of the spindle 100 at different tightness. With the rolled wrap 3 held in place on the spindle 100, the user may then tensely stretch the outward pulled portion of the rolled wrap to smoothly and firmly package the article.

With the above arrangements, a rolled wrap may be rotatably mounted on the spindle of the present invention at controlled tightness, and be more conveniently operated to perfectly package an article. 

1. A spindle for rolled wrap, comprising: a hollow tubular body, a front section of which is axially symmetrically cut at two diametrically opposite sides to form an upper and a lower half; said upper and said lower half being provided at predetermined positions on inner wall surfaces with two corresponding push blocks; each of said push blocks defining an axial open-side recess that tapers toward a front end of said hollow tubular body; and a rear section of said hollow tubular body being a hollow handle having a length of threaded portion provided at a predetermined position on an inner wall surface thereof; and a threaded rod axially movably received in said hollow tubular body to mesh with said threaded portion of said hollow handle, and having a tapered front end and a diametrically expanded round grip formed at a rear end thereof; whereby when a rolled wrap is mounted on said upper and said lower half at the front section of said tubular body with said threaded rod received in said hollow tubular body without being screwed to pass through said push blocks, said rolled wrap is allowed to freely rotate about said upper and said lower half of the front section of said tubular body and be outward pulled for packaging an article; and when said threaded rod is screwed inward to move through said push blocks, said upper and said lower half of said tubular body are flared to tightly contact with and hold said rolled wrap in place, allowing a user to tensely stretch an outward pulled length of said rolled wrap to smoothly and firmly package the article.
 2. The spindle for rolled wrap as claimed in claim 1, wherein said upper and said lower half at the front section of said hollow tubular body are provided at free ends with radially raised hooking ribs to prevent said rolled wrap from moving out of said spindle via a front end of said tubular body. 